From f5cdfb47e56bc09c29f4ddca77c433a0ebf8c19a Mon Sep 17 00:00:00 2001
From: Michael Howell <michael@notriddle.com>
Date: Wed, 26 Jan 2022 09:24:36 -0700
Subject: [PATCH] rustdoc: add test case for multiple traits and erased names

https://github.com/rust-lang/rust/pull/92339#discussion_r792805289
---
 src/test/rustdoc-js/generics-multi-trait.js | 32 +++++++++++++++++++++
 src/test/rustdoc-js/generics-multi-trait.rs | 12 ++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 src/test/rustdoc-js/generics-multi-trait.js
 create mode 100644 src/test/rustdoc-js/generics-multi-trait.rs

diff --git a/src/test/rustdoc-js/generics-multi-trait.js b/src/test/rustdoc-js/generics-multi-trait.js
new file mode 100644
index 00000000000..e7fcea876c8
--- /dev/null
+++ b/src/test/rustdoc-js/generics-multi-trait.js
@@ -0,0 +1,32 @@
+// exact-check
+
+const QUERY = [
+    'Result<SomeTrait>',
+    'Zzzzzzzzzzzzzzzzzz',
+    'Nonononononononono',
+];
+
+const EXPECTED = [
+    // check one of the generic items
+    {
+        'in_args': [
+            { 'path': 'generics_multi_trait', 'name': 'beta' },
+        ],
+        'returned': [
+            { 'path': 'generics_multi_trait', 'name': 'bet' },
+        ],
+    },
+    {
+        'in_args': [
+            { 'path': 'generics_multi_trait', 'name': 'beta' },
+        ],
+        'returned': [
+            { 'path': 'generics_multi_trait', 'name': 'bet' },
+        ],
+    },
+    // ignore the name of the generic itself
+    {
+        'in_args': [],
+        'returned': [],
+    },
+];
diff --git a/src/test/rustdoc-js/generics-multi-trait.rs b/src/test/rustdoc-js/generics-multi-trait.rs
new file mode 100644
index 00000000000..e6fd06d254c
--- /dev/null
+++ b/src/test/rustdoc-js/generics-multi-trait.rs
@@ -0,0 +1,12 @@
+pub trait SomeTrait {}
+pub trait Zzzzzzzzzzzzzzzzzz {}
+
+pub fn bet<Nonononononononono: SomeTrait + Zzzzzzzzzzzzzzzzzz>() -> Result<Nonononononononono, ()> {
+    loop {}
+}
+
+pub fn beta<Nonononononononono: SomeTrait + Zzzzzzzzzzzzzzzzzz>(
+    _param: Result<Nonononononononono, ()>,
+) {
+    loop {}
+}